The deeper the research of the modern explorer, the more often he comes face to face with the discoveries of the ancients. Does Elie de Beaumont, the great French geologist, venture a hint upon the terrestrial circulation, in relation to some elements in the earth’s crust, he finds himself anticipated by the old philosophers. Do we demand of distinguished technologists, what are the most recent discoveries in regard to the origin of the metalliferous deposits? We hear one of them, Professor Sterry Hunt, in showing us how water is a _universal solvent_, enunciating the doctrine held and taught by the old Thales, more than two dozen centuries ago, that water was the principle of all things. We listen to the same professor, with de Beaumont as authority, expounding the terrestrial circulation, and the chemical and physical phenomena of the material world. While we read with pleasure that he is “not prepared to concede that we have in chemical and physical processes _the whole secret of organic life_,” we note with a still greater delight the following honest confession on his part: “Still we are, in many respects, approximating the phenomena of the organic world to those of the mineral kingdom; and we at the same time learn that these so far interest and depend upon each other that _we begin to see a certain truth_ underlying the notion of those old philosophers, who extended to the mineral world the notion of a vital force, which led them to speak of the earth as a great _living_ organism, and to look upon the various changes of its air, its waters, and its rocky depths, as processes belonging to the life of our planet.” Everything in this world must have a beginning. Things have latterly {190} gone so far with scientists in the matter of prejudice, that it is quite a wonder that even so much as this should be conceded to ancient philosophy. The poor, honest primordial elements have long been exiled, and our ambitious men of science run races to determine who shall add one more to the fledgling brood of the sixty-three or more elementary substances. Meanwhile there rages a war in modern chemistry about terms. We are denied the right to call these substances “chemical elements,” for they are not “primordial principles or self-existing essences out of which the universe was fashioned.”[317] Such ideas associated with the word _element_ were good enough for the “old Greek philosophy,” but modern science rejects them; for, as Professor Cooke says, “they are unfortunate terms,” and experimental science will have “nothing to do with any kind of essences except those which it can see, smell, or taste.” It must have those that can be put in the eye, the nose, or the mouth! It leaves others to the metaphysicians.